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cond-mat.str-el1999★ 28 cited
Spin Waves in Canted Phases: An Application to Doped Manganites
J. M. Roman, J. Soto
We present the effective lagrangian for low energy and momentum spin waves in canted phases at next to leading order in the derivative expansion. The symmetry breaking pattern SU(2…
cond-mat.str-el1998★ 6 cited
Continuum Double Exchange Model
J. M. Roman, J. Soto
We present a continuum model for doped manganites which consist of two species of quantum spin 1/2 fermions interacting with classical spin fields. The phase structure at zero temp…